?A flask is charged with 0.100 mol of A and allowed to react to form B according to the hypothetical gas-phase reaction \(\mathrm{A}(g) \longrightarrow

Chapter 14, Problem 14.20

(choose chapter or problem)

A flask is charged with 0.100 mol of A and allowed to react to form B according to the hypothetical gas-phase reaction \(\mathrm{A}(g) \longrightarrow \mathrm{B}(g)\). The following data are collected:

(a) Calculate the number of moles of B at each time in the table, assuming that A is cleanly converted to B with no intermediates.

(b) Calculate the average rate of disappearance of A for each 40 s interval in units of mol/s.

(c) Which of the following would be needed to calculate the rate in units of concentration per time:

(i) the pressure of the gas at each time,

(ii) the volume of the reaction flask,

(iii) the temperature, or

(iv) the molecular weight of A?

Text Transcription:

A(g) \longrightarrow B(g)